Free sample, a test is recommended

No sales to private individuals

Keep-Nut stainless steel 303 with large head

You're here: Range Press-in insert
Keep-Nut stainless steel 303 with large head
LOADING ZOOM

Keep-Nut® IM-T – Press-fit insert for ultra-hard materials

Product overview

The Keep-Nut® IM-T in stainless steel303 is a robust press-fit insert specifically developed for direct installation in hard and brittle materials such as ceramics, HPL, natural stone, composites, or tempered glass – from a minimum thickness of 6?mm.
Its mechanical anchoring method ensures secure threading without adhesives or complex preparation.

Description

Key features and specifications

Material & design

  • Manufactured in stainless steel (AISI 303), with flange

  • Standard outer diameter: Ø:12.5mm

  • Internal thread options: M4, M5 and M6

  • Available with 1, 2 or 4 elastic crowns depending on application needs

Installation advantages

  • Requires only a cylindrical hole (Ø:12,0mm) with correct depth

  • Can be installed using a hammer or dedicated PKN insertion tool

  • No glue or epoxy required

  • Minimal stress is transferred to the base material

Secure & controlled mounting

  • Internal thread is not through-tapped, preventing overlong bolts from damaging thin panels

  • For fragile or decorative surfaces, the optional PKN installation tool helps avoid cracks or surface damage

Installation guide – Step-by-step

  1. Drill a Ø:12,0mm hole to the recommended depth

  2. Optionally verify the hole and fit using a GO-NO-GO gauge

  3. Place the Keep-Nut® IM-T insert into the hole

  4. Tap into place with a hammer or PKN tool

  5. Clamp the counter part, assemble the fastening bolt – the elastic crowns will expand against the inner wall, locking the insert in place

Typical applications & benefits

Use cases

  • Ventilated façades and architectural panels

  • Decorative wall or ceiling panels

  • Kitchen furniture, bathroom fixtures, interior fit-outs

  • Mounting elements in ceramic, HPL, glass or natural stone

Why choose Keep-Nut® IM-T?

  • Reliable thread anchoring in hard and brittle materials

  • The nylon collar ensures acoustic insulation when assembled against metal

  • Usuable from 6mm and + thickpanels

  • Fast, glue-free installation

  • Flush mounting ideal for minimalistic designs

  • No chemical curing time or complex tools required

  • Suitable for both workshop and on-site installation

Documentation & sample request

You can download the complete technical datasheet (PDF) for the Keep-Nut® IM-T. Samples are available upon request to test performance in your specific application.

Frequently asked questions about Keep-Nut stainless steel 303 with large head

Do you need adhesive or undercut drilling?

No — the Keep-Nut only requires a standard cylindrical hole; no undercut drilling or adhesive is needed.

How is the Keep-Nut installed?

Steps: drill the hole according to the specifications (diameter + depth), check the dimensions using a Go/No-Go gauge, screw the insert onto the PKN tool, hammer it into the hole, and then unscrew the PKN tool — the insert is now ready for use.

For non-sensitive and/or scratch-resistant panels, the Keep-Nut can simply be hammered directly into the prepared hole.

In which materials can the Keep-Nut® be used?

Examples include granite, marble, travertine, fiber cement, HPL, solid surface, tempered glass, and composite panels. In some fiber cement boards, the insert can also be used, but testing is recommended first.

What is the Keep-Nut® insert?

It is a press-in threaded insert that creates a permanent internal stainless steel thread in panels made of natural stone, composite, HPL, glass, and other solid-surface materials — requiring only a standard cylindrical hole.



Video